Noun - A cocknocker of Finish descent. Generally a Finish Fuck will utlize the time zone difference between Finland and the U.S. to berate, annoy, or insult his mates whilst drunk at a time of day that they are at work or on the unemployment line.

(phone ringing)

Yen: "Shouldn't you get that?"

Mike: "Nah; it's the Finnish Fuck. If I pick it up it'll just be him pissing in the toilet while holding the phone next to it. It is after 6pm there after all..."